Rated 4 out of 5 stars

The add-on worked well and silent in the background, until Thunderbird made its update to 78.7.1. (64-bit on Ubuntu 20). Now, unfortunately, exchange is just not syncing any more... would be glad if that could be fixed!

Many thanks for the quick reply! I can't edit or add/remove accounts... that function has disappeared at the TB Sync options. Just opened a thread in Thunderbird help, too. There I will upload a screenshot... see https://support.mozilla.org/de/questions/1328759#answer-1397622

Đánh giá này là cho một phiên bản trước của tiện ích (1.20). 

Remove the account in TbSync and set it up anew, maybe use the new modern auth method.